Videos
Pearson Edexcel · International GCSE · Mathematics A
Pick a topic to watch.
6 video lessons
6:02
Numbers and the number system
Four families carry topic 1. Every percentage change is a multiplier, and a reverse percentage divides b…
5:36
Equations, formulae and identities
The Higher formulae sheet gives only the quadratic formula, so the rest you carry. Multiply powers by ad…
5:16
Sequences, functions and graphs
Topic 3 is the heaviest strand on the Higher papers. The nth term of an arithmetic sequence is a plus n …
5:44
Geometry and trigonometry
Topic 4 is the largest topic. The Higher formulae sheet gives the sine and cosine rules, the area half a…
3:30
Vectors and transformation geometry
A column vector goes across, then up, and a scalar multiple stretches both parts. Its magnitude comes fr…
3:48
Statistics and probability
Four families carry topic 6. A grouped mean uses midpoints. A histogram bar's area is its frequency, so …